CN201247375Y - Multi-light-source lighting device for projector - Google Patents
Multi-light-source lighting device for projector Download PDFInfo
- Publication number
- CN201247375Y CN201247375Y CNU2008200889932U CN200820088993U CN201247375Y CN 201247375 Y CN201247375 Y CN 201247375Y CN U2008200889932 U CNU2008200889932 U CN U2008200889932U CN 200820088993 U CN200820088993 U CN 200820088993U CN 201247375 Y CN201247375 Y CN 201247375Y
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- light source
- light
- optical axis
- projector
- output
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Abstract
The utility model provides a lighting device with multiple-light sources of a projector, which at least comprises two light sources, wherein the switching of the light sources between the light sources can be realized through driving a rotation shaft by a motor, and the brightness can be improved through the simultaneous work of the multiple light sources. The device can realize the function of single-lamp switching, and can improve the luminous light energy by one time to two times through the simultaneous work of the multiple lights, and guarantees the uniform lighting.
Description
Technical field
The utility model relates to a kind of lighting device in the optical instrument field, relates in particular to multi-light source illuminator for projectors.
Background technology
Along with science and technology development, the range of application of projector is more and more wider, projector adopts LCD or DLP technology mostly on the market at present, its core light engine mainly is to adopt light source through illumination optics illumination LCD panel or DMD assembly, images on the screen by projection lens then.Be the illumination path synoptic diagram of present canonical projection machine as shown in Figure 1, the converging light of being sent by light source shines developing device behind colour wheel, lamp guide, illumination eyeglass and prism, and then by projection lens projects to screen.Optical lighting system is to influence optical projection system brightness and the topmost parts of color uniformity coefficient.The illuminator that present optical projection system is adopted mainly is made up of a light source and a plurality of optical mirror slip.These optical mirror slips also are used for the equalizing light rays that light source is sent except in order to the direction of transfer of adjusting light.
Because the brightness for projection products on the market is more and more higher with the requirement of color uniformity coefficient, the design of illuminator is more and more attention also, adopts the illuminator in many lamps source to improve brightness.Consider the characteristics of projector's continuous working simultaneously, how changing the lighting source that lost efficacy fast is the problem that should consider in the design in the projector.The utility model patent is to propose under such background.
Summary of the invention
The purpose of this utility model is to provide a kind of projector multi-light-source illumination system, does not need to change the optical system behind the colour wheel, just can realize the automatic switchover of light source by motor fast, guarantees the operate as normal of projector.
The multi-light-source illumination system of a kind of projector that the utility model provides, comprise at least two light sources and by the rotating shaft of driven by motor, described light source is fixed in the rotating shaft, rotating shaft is positioned on the light source output light focus point, each light source can coincide through the optical axis that rotating shaft drives the optical axis make each light source and the subsequent optical device of projector, and the output light focusing of each light source is projected in the optical system of projector.The utility model realizes that by motor and rotating shaft the rotation of light source realizes the switching of light source.
The utility model comprises the light source of two output converging lights, the optical axis of the optical axis of the wherein work light of described two light sources and subsequent optical system of projector coincides, the output light focus point of the output light focus point of another standby power source and work light coincides, two light sources can rotate around the shaft by motor-driven, realize that two light source positions change mutually, thereby finish the action of toggle lights.
The utility model also can be the light source of three output converging lights, described light source output light focus point coincides, one of them optical axis of described light source is positioned on the optical axis of subsequent optical system, other two light sources are positioned at symmetry two sides of optical axis, and each light source output light focusing is projected in the optical system of projector, and the optical axis of light source is in the same plane, and it is in the same plane with the optical axis of subsequent optical system of projector, three light sources can be worked simultaneously, also can work simultaneously by two standby power sources, no matter also can work light work independently, be to work in which way, and its illumination all is uniform.
The utlity model has following advantage:
1. under the situation that does not change the illumination optical eyeglass, the automatic switchover by multiple light courcess has guaranteed the continual and steady of projector's brightness.
2. multiple light courcess is in replacement work, and the light source facula position remains constant, keeps the uniformity coefficient of illumination.
3. multiple light courcess not only can work independently but also can work simultaneously, and the illumination light energy is significantly improved.
The utility model both can be used for the illuminator of projector, also can be used in other product that need throw light on.
Description of drawings
Fig. 1 is the typical illumination path synoptic diagram of present projector;
Fig. 2 is the illumination path synoptic diagram of one of embodiment of the present utility model;
Fig. 3 is two the illumination path synoptic diagram of embodiment of the present utility model;
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment one
Figure 2 shows that embodiment of the present utility model, comprise compositions such as working power 1, standby power supply 2, motor 3, rotating shaft 4, colour wheel 5, lamp guide 6, illumination eyeglass and prism group 7, developing device 8, projection lens 9.Work light 1 and standby power source 2 are convergent light source, rotating shaft 4 is driven by motor 3, work light 1 and standby power source 2 are positioned on the same plane at an angle, the optical axis of the optical axis of work light 1 and subsequent optical system of projector coincides, the output light focus point of the output light focus point of standby power source 2 and work light 1 coincides, and formed plane of two light source optical axis and rotating shaft 4 are perpendicular.Rotating shaft 4 is positioned on the output light focus point of work light 1.
When work light 1 inefficacy maybe needed to change light source, motor 3 drove rotating shafts 4 rotations, makes standby power source 2 enter the position of work light 1, realizes the change action of light source.
Embodiment two
Figure 3 shows that embodiment of the present utility model, comprise compositions such as working power 1, standby power supply 2, colour wheel 5, lamp guide 6, illumination lens set 7, image device 8, projection lens 9.Work light 1 and standby power source 2 are convergent light source, light source output light focus point coincides, and the optical axis of light source is in the same plane, and it is in the same plane with the optical axis of subsequent optical system of projector, the optical axis of the optical axis of work light 1 and subsequent optical system of projector coincides, two standby power sources 2 are positioned at two sides of symmetrical, and each light source output light focuses on and projects in the optical system of projector.Three light sources can be worked simultaneously, make the illumination light energy improve two times; Also can work simultaneously by two standby power sources 2, the illumination light energy is doubled; No matter also can work light 1 work independently, be to work in which way, and its illumination all is uniform.
Claims (5)
1. multi-light source illuminator for projectors, it is characterized in that: comprise the light source of at least two output converging lights and by the rotating shaft of driven by motor, described light source is fixed in the rotating shaft, each light source can drive the follow-up system optical axis of the optical axis make light source and projector through rotating shaft and coincide, and the focusing of output light projects in the optical system of projector.
2. multi-light source illuminator for projectors according to claim 1 is characterized in that: the rotating shaft by driven by motor is positioned on the output light focus point of work light.
3. multi-light source illuminator for projectors according to claim 1 is characterized in that: the output light focus point of each light source overlaps, and the optical axis of two light sources and follow-up system optical axis are in the same plane.
4. multi-light source illuminator for projectors, it is characterized in that: the light source that comprises output converging light more than three, one of them optical axis of described light source is positioned on the optical axis of subsequent optical system, other two light sources are positioned at symmetry two sides of optical axis, and each light source output light focusing is projected in the optical system of projector.
5. multi-light source illuminator for projectors according to claim 4, it is characterized in that: described light source output light focus point coincides, and the optical axis of light source is in the same plane, and it is in the same plane with the optical axis of subsequent optical system of projector, three light sources can be worked simultaneously, also can work simultaneously by two standby power sources, also can work independently by a light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200889932U CN201247375Y (en) | 2008-06-26 | 2008-06-26 | Multi-light-source lighting device for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200889932U CN201247375Y (en) | 2008-06-26 | 2008-06-26 | Multi-light-source lighting device for projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201247375Y true CN201247375Y (en) | 2009-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200889932U Expired - Fee Related CN201247375Y (en) | 2008-06-26 | 2008-06-26 | Multi-light-source lighting device for projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201247375Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073137A (en) * | 2010-11-29 | 2011-05-25 | 广东威创视讯科技股份有限公司 | LED (Light Emitting Diode) illuminating device and projector |
| CN102966926A (en) * | 2012-07-06 | 2013-03-13 | 科瑞自动化技术（苏州）有限公司 | Fast light source switching device |
| CN107748476A (en) * | 2017-11-13 | 2018-03-02 | 苏州佳世达光电有限公司 | A kind of more lamp projection arrangements and a kind of ignition method |
| WO2018141112A1 (en) * | 2017-02-06 | 2018-08-09 | Goertek. Inc | Micro laser diode projector and electronics apparatus |
-
2008
- 2008-06-26 CN CNU2008200889932U patent/CN201247375Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102073137A (en) * | 2010-11-29 | 2011-05-25 | 广东威创视讯科技股份有限公司 | LED (Light Emitting Diode) illuminating device and projector |
| CN102966926A (en) * | 2012-07-06 | 2013-03-13 | 科瑞自动化技术（苏州）有限公司 | Fast light source switching device |
| CN102966926B (en) * | 2012-07-06 | 2014-08-06 | 科瑞自动化技术（苏州）有限公司 | Fast light source switching device |
| WO2018141112A1 (en) * | 2017-02-06 | 2018-08-09 | Goertek. Inc | Micro laser diode projector and electronics apparatus |
| CN109073960A (en) * | 2017-02-06 | 2018-12-21 | 歌尔股份有限公司 | Miniature laser diode projector and electronic equipment |
| CN109073960B (en) * | 2017-02-06 | 2021-05-18 | 歌尔股份有限公司 | Micro laser diode projector and electronic device |
| US11099467B2 (en) | 2017-02-06 | 2021-08-24 | Goertek Inc. | Micro laser diode projector and electronics apparatus |
| CN107748476A (en) * | 2017-11-13 | 2018-03-02 | 苏州佳世达光电有限公司 | A kind of more lamp projection arrangements and a kind of ignition method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU LUMEON CYBER OPTO-ELECTRONICAL TECHNOLOGY Free format text: FORMER NAME: SANHUAKETE PHOTOELECTRIC CO LTD, HANGZHOU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Hangzhou City, Zhejiang Province, 310030 Xihu District three Town Xiyuan four Road No. 2 Building No. 1 1 floor Patentee after: Hangzhou Cyber Opto-Electronic Technology Co., Ltd. Address before: Hangzhou City, Zhejiang Province, 310030 Xihu District three Town Xiyuan four Road No. 2 Building No. 1 1 floor Patentee before: Hangzhou Cyber Opto-Electronic Technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Hangzhou Cyber Opto-Electronic Technology Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Hangzhou Cyber Opto-Electronic Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20140626 |
|
| EXPY | Termination of patent right or utility model |